Abstract
In this paper we establish two theta function identities with four parameters by the theory of theta functions. Using these identities we introduce common generalizations of Hirschhorn-Garvan-Borwein cubic theta functions, and also re-derive the quintuple product identity, one of Ramanujan’s identities, Winquist’s identity and many other interesting identities.
Similar content being viewed by others
References
Whittaker, E. T., Watson, G. N.: A Course of Mordern Analysis, 4th ed. (reprinted), Cambridge Univ. Press, Cambridge, 1962
Hirschhorn, M. D., Garvan, F., Borwein, J.: Cubic analogues of the Jacobian theta function θ (z, q). Canad. J. Math., 45, 473–694 (1993)
Borwein, J. M., Borwein, P. B., Garvan, F. G.: Some cubic modular identites of Ramanujan. Trans. Amer. Math. Soc., 343, 35–47 (1994)
Borwein, J. M., Borwein, P. B.: A cubic counterpart of Jacobi’s identity and AGM. Trans. Amer. Math. Soc., 323, 691–701 (1991)
Ramanujian, S.: Collected Paper, Chelsea, New York, 1962
Ramanujian, S.: Notebooks, Volume 2, TIFR, Bombay, 1957
Berndt, B. C., Bhargava, S., Garvan, F. G.: Ramanujan’s theories of elliptic functions to alternative bases. Trans. Amer. Math. Soc., 347, 4163–4244 (1995)
Lewis, R., Liu, Z. -G.: The Borweins’ cubic theta functions and q-elliptic functions, in: Symbolic Computation, Number Theory, Special Functions, Physics and Combinatorics, F. G. Garvan and M. E. H. Ismail (Eds.), Kluwer Acad. Publ., Dordrecht, 2001, 133–145
Bhargava, S.: Unification of the cubic analogues of the Jacobian theta-function. J. Math. Anal. Appl., 193, 543–558 (1995)
Chapman, R.: Cubic identities for theta series in three variables. Ramanujan J., 8, 459–465 (2005)
Cooper, S., Toh, P. C.: Determinant identities for theta functions. J. Math. Anal. Appl., 347, 1–7 (2008)
Shen, L. C.: On the products of three theta functions. Ramanujan J., 3, 343–345 (1999)
Bellman, R.: A Brief Introduction to Theta Functions, Holt, Rinehart and Winston, New York, 1961, 62
Koblitz, N.: Introduction to Elliptic Curves and Modular Forms, Springer, Berlin, 1993
Berndt, B. C.: Ramanujan’s Notebooks, Part III, Springer-Verlag, New York, 1991
Cooper, S.: Cubic theta functions. J. Comput. Appl. Math., 160, 77–94 (2003)
Bhargava, S., Fathima, S. N.: Unification of modular transformations for cubic theta functions. New Zealand J. Math., 33, 121–127 (2004)
Liu, Z. -G.: An addition formula for the Jacobian theta function and its applications. Adv. Math., 212, 389–406 (2007)
Liu, Z. -G.: A theta function identity and its application. Trans. Amer. Math. Soc., 357, 825–835 (2005)
Berndt, B. C., Chan, S. H., Liu, Z. -G., et al.: A new identity for (q; q) 10∞ with an application to Ramanujan’s partition congruence modulo 11. Quart. J. Math., 55, 13–30 (2004)
Cooper, S.: The quintuple product idntity. Int. J. Number Theory, 2, 115–161 (2006)
Author information
Authors and Affiliations
Corresponding author
Additional information
Supported by Innovation Program of Shanghai Municipal Education Commission and PCSIRT
Rights and permissions
About this article
Cite this article
Yang, X.M. The products of three theta functions and the general cubic theta functions. Acta. Math. Sin.-English Ser. 26, 1115–1124 (2010). https://doi.org/10.1007/s10114-010-8435-6
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10114-010-8435-6